Improvement in ventilators



EDWARD J. DURANT, 0F LEBANON, NEW HAMPSHIRE.

Letters Patent No. 108,464, dated October 18, 1870.

Www-

The Schedule referred to in these Letters Patent and making part ofthe same.

To all whom t may concern:

Be it known that I, EDWARD J. Dt'aaxr, ot' Lebanon, in the county of Grafton and and State of New Hampshire, have invented an Improved Method of Ventilating Public Halls, Apartments, &c.; andI dohereby declare that the following is a full and cxact description thereof, reference being had to the accompanying drawing, which forms a portion of this specification- Figure l being an outside view ot' one side of an apartment which is ventilated by my improved method of ventilation;

Figure 2, plate 2, a top view of said apartment;

Figure 3, a vertical section inthe line b b of 2;

Figure 4, a vertical section in the line (t (t of iig. 2;

Figure 5. a vertical section in the line (Z d ot'tig. 2; and y Figure (i, a vertical section in the line c c of lig. 2.

Similar letters of' reference indicate the same parts in each drawing.

Wit-hin the chimney, which communicates with the apartment to be ventilated byiny improved method and apparatus, vertical ventilating tluesjj are located on each side of the smoke-Hue 7., and from which thev are separated hy thin partition plates or walls l I.

The space within the cornice ot` lsaid apartment divided into two horizontal conducting air-passages f and l1.

The conductingair-passage It connnunicates with the ventilating-tlues j j, within the chimney, and also with the vertical air-tubes r/ y, which are loca-ted in, each corner of the apartment, and in as many other positions on o r within the walls of the same as the size ot' the apartment may require to produce perfeet ventilation within the same.

The said vertical air-tubes g y communicate freely at their lower ends with theratmosphcre near the iioor of the apartment. l

rlhe contiguity of the chimney vcn'tilating-tlucs ij to the heated products of con'ibust-ion ascending in the smokc-tlue It', will rarcfy the air within the said `ventilatilig-fines, and thereby lanse a continuous ascending atmospheric current within the same, whichatmospheric current will bc drawn from the apart ment through the series of vertical air-tubos y l/ and thc horizontal air-passages 7a. 7l.

The horizontal air passages fjcommunicatc freely with the outer atmosphere hy means of the vertical air-tube c within one ot' thc outer walls ot the apartment, as shown in tig. 5.

Apertures m ni, or other suitable openings in the exposed surface ot' thcair-1mssagcsff, allow thel'iurc air that enters the same to be freely discharged into vthe apartment to supply the place of the impure air that is being constantly drawn from the tloor portion of the same through the vertical air-tubes g g, the horizontal ainpassages hh, and the ychimney ventilating-tluesjj.

Halls, and other large apart-ments, may be furnished with as many vertical induction air-tubes, e e, as lmay be required to fully supply the same with pure air.

The volume ot' air entering the said induction airtuhes c e may be regulated by a valve or valves, i, substantially as shown in figs. 1 and 5.

If deemed preferable, the lower ends of the vertical air-tubes g g may he so arranged as to communicate with registers either in the wall or the oor of the ventilated apartment.

By my said Ventilating apparatus, the pure air being admitted to the extreme upper portion of an apartment where the ten'iperatnre within the same is the highest, the said pure air minglcs with the warmest air in the apartment before it descends to the lower portion of the same, thereby-utilizing the higher temperature in the upper portion of an apartment, and preventing any injurious currents of cold air from reaching the persons seated upon t-he floor of the same. i

lf deemed preferable, the ventilating air-tubes g g, and the horizontal ai`r-passagcs f h, employed in my method of ventilation, may be so located as not to he visible to any person within the ventilated apartment. I

`In repeated instances, where my said improved method of ventilation has been tested, thc result-s have been perfectly satisfactory.

A perfectly pure atmosphciehas been preserved in apartments ot' various sizes, and under the most trying circumstances, and said experiments have also been attended by a eonsidcrahhl saving.of fuel in the warming of said apartments.

Having thus fully described my improved method ot' ventilating public halls, dwellingapartments, die.,

What I claim vtherein as. my invention, and desire to secure by Letters Patent, is-

The withdrawal of the impure air. from the Hoor portion ofa. hall o apartment, and at the same time letting pure air into the upper portion ofthe same by m 2ans of the combined use ot' the vertical air-tubes r/ l/ with the horizontal air-passages 7il '74., and the chimney ventilatiug-tlucs jj, acting conjointly with the vertical air-tube c, and the horizontal air-dis tributing passages ff, substantially in the manner herein set fort-h; but this I only claim when thc apparatus for warming an apartment forms a portion of my said combination for Ventilating the same.

In testimony that the aforegoing is a full and clear description ot' my improved method of ventilating public halls, apartments, Ste., I do hereby-subscribe my name.

ETDVARD J. DURANT.

Witnesses J. M. lnmuxs, (fr. l". Dolmar. 

